Machine for roughing out pinions



(No Model.) 8 Sheets-Sheet 1. E. A. MARSH.

MACHINE FOR ROUGHING OUT PINIONS.

No. 330,600.. d Patented Nov.1'7, 1885.

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MACHINE IQ` ROUGHING OUT PINIONS.

lltented Nov. 17, 1885.

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RA. MARSH. MACHINE PoR-ROUGHING OUT PINIONS. No. 330,600. A PatentedNov. 17; 1885.

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MACHINE FOR ROUGHING OUT PINIUNS.

vNo. 330,600.

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E. A. MARSH. MACHINE POR ROUGHING OUT PINIONS. No. 330,600. Paten-tedNo., 171885. Z, 7a JC/ J 1 -Q 6?/ WPI-[455555- a IPA/ENTER- v f7, //l/WWF-- '7- A I Z www (No Model.) 8 Sheets-Sheet 6.

E. A. MARSH.

MACHINE POR ROUGHING GUT PINIONS. No. 330,600. Patented Nov. 17, 1885.

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E. A. MARSH. MACHINE FOR ROUGHING OUT PINIONS. y No. 330,600.PatentedNov. 17, 1885.

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y MACHINE FOR ROUGHING OUT PINIONS. No. 330,600. Patented Nov.. 17,1885.

WIT 55555- l INVENT I'r'l'L-DTE MNA/ UNITED STATES PATENT EErcE.

EDWARD A. MARSH, OF NEWTON, MASSACHUSETTS.

MACHINE FOR ROgUGHING OUT PINIONS.

SPECIFICATION forming part ofLetters Patent No. 330,600, dated November17, 1885.

Application filed July 17, 1885. Serial No. 171,850. (No model.)

To all whom it may concern:

Be it known that I, EDWARD A. MARSH, of Newton, in the county ofMiddlesex and State of Massachusetts, have invented certain new anduseful Improvements in Machines for Turning or Roughing Out Pinions,&c., of

' which the following is a speciicatiom This invention relates toautomatic machines for making blank pieces from wire rods, giving suchpieces an approximation to the form of the nished article, so that theycan be completed by subsequent operations.

The machine hereinafter described is constructed to form blanks forwatch-pinious, arbors, staffs, 85o.; but the invention' is not limitedto such uses, as several of its features may be embodied in machines forforming blanks for other purposes.

In my invention I employ four or more spindles, each provided with achuck for holding a wire rod, and all revolved at intervals around acommon center, rod grasping and feeding devices alternating in positionwith the blank-forming tools, the arrangement being such that two ormore rods are simultaneously grasped and drawn outwardly from theirchucks, and two or more other rods are at the same time presented to theformingtools, the two rods drawn outwardly being afterwardsimultaneously presented to the forming-tools. I also employ a secondseries of spindles each provided with chucks which face toward the firstseries, one spindle of each series being brought successively in directaxial line with one of the other series, to

enable the spindles of the second series to move lengthwise toward thespindles of the iirst series, and take the blanks therefrom and presentthem to another forming-tool.

The chief object of the invention is to perform simultaneously severalvaried and successive operations on a number of pieces, so that acomplete piece of work, the result of all of the operations, will beproduced every time that any one of said operations is per.

formed, all of which I- will now proceed to describe.

Of the accompanying drawings, forming a part of this specification,Figure 1 represents a side elevation of my improved machine.

Fig. 2 represents a top view of the same. Fig. 8 represents a section online w x, Fig. 2. Fig. 4 represents a section on line g/ y, Fig., 2.Fig. 5 represents au end elevation of the headstock and the portion ofthe mechanism behind it, as viewed from the left-hand end of Fig. 1.Fig. 6 represents an elevation of the opposite end of the head-stock.Fig. 7 represents an end elevation of the entire machine, as viewed fromthe right-hand end of Fig. 1. Fig. 7 represents a side elevation of apart of the mechanism shown in Fig. 7..

Figs. 8 to 14, inclusive, represent enlarged sectional views showing thedifferent steps in the operation of forming a watch pinion blank. Fig.l5 represents a side elevation and partial section of a part of thehead-stock, showing a cutter adapted to move along the rod whilereducing it. Fig. 16 represents a section on line c c, Fig. 15. Fig. 16ais a detail taken on the line z z', Fig. 16. Fig. 17 represents a sideView of the rod as reduced by the cutter shown in Fig. l5.

The same letters of reference indicate the same parts in all thefigures.

In the drawings, ci represents the bed-plate, on which is mounted acasing or head-stock, b, having a large cylindrical opening, in which isfitted a rotary head or drum, c, Fig. 3. head for lightness is made inthe general form of a spool, and is composed of two disks or ends, 2 y3,Fig. 3, connected by a longitudinal rod, 4,' and bearing on the innersurface of the head-stock b at the ends of the latter, and a third diskor plate, 5, secured to the rod 4.. In the head c are iitted to rotatefour or more running spindles, d, placed at equal distances apart andequidistant from the axis of the head. Each running spindle is composedof an interior tube, 6, to which is attached the rod-holding chuck 7,having self-opening spring-jaws, and an outer tube, 8, Fig. 3, which iscapable of endwise motion on the inner tube, and when moved in onedirection closes the jaws of the chuck upon the rod, and when moved inthe opposite direction allows said jaws to release the rod. This form ofspindle is technically known as a slidespindle The outer tube is movedforward to close the jaws of the chuck by means of sprin gs interposedbetween flanges Said IOO

9 10, formed on the two tubes, and is moved backward to release the jawsby means hereinafter described. The head c is rotated step by step aquarter of a complete revolution each step, to present each spindlesuccessively to the feeding-jaws m m, the cutter e, the feed,- ing-jawsn n, and the cutterf, hereinafter described. These movements of the headare effected by means of a ring, Z5, journaled on the periphery of therear end plate, 3, of the head or drum, and having a spring-pawl,j5,Fig. 5, adapted to engage with notches cut at equal distances apart insaid plate, and mechanism for oscillating said ring upon the plate 3 torotate the head c step by step. Said mechanism consists of a lever, 7c,pivoted at Z5, and connected by a rod, m5, to the ring 115, a cam,

n", on the drivin g-shaft Z, the periphery of which supports astud orroller on the lever h5, and a weight or its equivalent suspended by acord, p5, from the leverk, and holding the stud thereof against the cama5. The lever k is alternately raised by the cam and depressed by theweight, and is thus imparting motion to the ring i5, as will be readilyseen. lWhen the ring is being rotated backwardly by the upward movementof the lever, a projection on said ring strikes and throws outalateh,g5, engaged with one of the notches of the plate 3, the pawl 3o j at thesame moment engaging with another notch. The next depression of thelever k5 causes, the pawl j5 to give the head c a partial rotation, thelatch g5 springing into the following notch and locking'the head.

e and f, Figs. 2, 6, and 7, represent cutters formed in this case toreduce the wire rodv in making watch-pinion blanks, said cutters beingshown enlarged iu section in Figs. l() and 12. They aremounted,respectively,on swinging levers g h,aflixed to rock-shaftsi z',having arms j j,which bear against and are oscillated by cams 7c kon thedriving or cam shaft Z, so

that the cutters e f are caused to simultaneously approach and recedefrom two of the running spindles at opposite sides of the center of thehead c. The arrangement of the cutters with relation to the head or drumc is clearly shown in Fig. 6.

m m and n n represent two pairs of rod grasping and feeding jaws pivotedto slides o p,which are capable of moving lengthwise on the`head-stock.Said jaws are arranged to grasp and feed wire rods in the two spindleswhich alternate with the spindles in operative relation to the cuttersef,thus simultaneously preparing said rods for the next simultaneousaction of said cutters,the headc being rotated a quarter of a completerotation after each action of the feeding-jaws and of the cutters, as

hereinafter described.

The two pairs of feeding-jaws are operated rods; fthly, they are movedfartherlforward the last partial rotation of the head or drum. 7 5

The outward and inward movements of the slides and jaws are effected bymeans of a vertical rock-shaft, q, journaled in the headstock b, twoarms, r s, affixed to Asaid rockshaft and projecting,respectively,between adjust-able screws t t and u u in posts on the slides o and p, acam, '0, on the driving-shaft, and a spring, w, which presses the arm sagainst the cam c. The rot-ation of the cam causes the rock-shaft q torock and oscillate the arms r s, which reciprocate the slides o p, saidslides being first moved forward, then stopped,then again moved forward,and finally moved back to the starting-point. The wire-grasping ends ofthe jaws m m n n are normally opened or separated by springs a a', andare caused to close upon the rods in the spindles tZ,while the slidesare moving outward or forward, by means of levers b c', pivoted,respectively, to studs on the slides o p, and projecting at their outerends between the inner sides of the jaws m m. The lever b is operated byarod, d', passing through the center of the rock-shaft g, a lever, e',pivoted at its rear` end to the rod d and at its center to ears f on thearm r of the rock-shaft q, its opposite end bearing against a screw, gf,in the rear end of the lever b', a spring, h', being employed to holdthe screw g against said lever e'. The lever c is operated by a lever,e, pivoted at its center to the arm s of the rockshaft and atits rearend to the rod d', Figs. 3 and 6, and a rod, i', interposed between theforward end of said lever e* and the rear end of the lever c. (See Fig.3.) These devices depress the ends of the levers b c', that projectbetween the jaws, and thus close the jaws during the first lforwardmovement of the slides op, so that the rods are fed during saidmovement, and raise the levers .so as to allow the jaws to separateduring the next forward movement of the slides, and while they areymoving back. The jaws, being thus caused to release the rods, moveforward to clear them, as shown in dotted lines in Figs. 9 and 11, whilethe head is being rotated, and then return to position to grasp the rodsiu the next spindles, as shown in Fig. 8. The jaws un are locatedfarther from the end of the head c than the jaws m m, as shown in Figs.l and 3, and move each rod outwardly from the Aposition to which it wasdrawn by thejaws m m, Figs. 9 and 10, to the position shown in Figs. 1land 172,v thus preparing the rod for the action of the severing-cutterf.(See Fig.

' 12.) The outer tubes of the two spindles that are in operativerelation to the feeding-jaws are moved back to allow the chucks of thosespindles to release the rods during the feed- IIO ISO

ing movement of the jaws by means. of two parallel rods, Z Z, Fig.- 3,adapted to slide in guides in the fixed frame behind the headstock, toesm m on said rods bearing against the iianges 10 10 of the two outertubes, a yoke, n', connecting said rods, a rock-shaft, o', journaled inbearings on said frame, and a toe or arm, p', on said rock-shaft,bearing against the yoke a. The rock-shaft o has Ya lever, p4, at oneend, which has a stud that bears against a cam, q', on the shaft Z, saidcam causing the rock-shaft 0 and its cam to turn and force the yoke aand rods Z, Z backwardly, and thus cause the toes m m to pressy back theouter tubes while the feeding-jaws are engaged with the rods and movingforward. The spindles are not rotated while they are presented to thefeeding-jaws m m' an, but are rotated while presented to the cutters ef,to cause said cutters to act on the rods, the cutters being non-rotary.Each spindle has a pulley, r', affixed to its rear end, and the pulleysof the two spindles that are presented to the cutters e f are rotatedsimultaneously by one or more belts. Before each rotation of the head c,said belts are shipped automatically onto two loose pulleys, s s',journaled on studs affixed to the rear frame of the machine, and whenthe rotary motion of the head is completed the belt is shipped onto thepulleys ofthe two spindles to be rotated. The shipping device consistsof two arms or levers, t t', pivoted to the frame, engaged with the beltat their upper ends, the lower end of one'ot' said arms being engagedwith a cam, u', on the driving-shaft.

c represents a tail-stock, in which is journaled a head, w', having fourspindles, d2, constructed like the spindles d, but facing in theopposite direction. The head rw is partially rotated at intervals andlocked after each rotation by means like those employed for rotating andlocking the head c. The tailstock is mounted on a plate or carriage,a7', which is adapted to slide on ways on the bedplate a in a directionparallel with the driving-shaft Z.

b2 represents a shaft, j ournaled in bearings on the carriage a? andmovable therewith, said shaft being parallel with the shaft Z andconnected thereto by spur-gears ezfz, secured to the two shafts, thegear e2 being made longer than the'gear f2 to maintain the connectionduring the changes of position caused by the movements of the slide a.b'z has a cam, g2, which is pressed against a stud, h2, on the bed-platea by a Weight, or its equivalent, depending from a cord, i2, attached tothe tail-stock, said weight and cam moving the carriage and tail-stockalternately in opposite directions. The tail-stock is so located thatwhen both heads are locked in their operative positions the spindle d@at the inner or front side of the head w', is in line with that spindled which isat the rearvside of the head c, and is presented to thesevering-cutterf, as Shown in Fig. 2. As soon as the rod held by spindled, last referred to, is in position, and l before it is set in motion,the tail-stock is advanced toward it, one of its spindles being indirect axial line with it. The chuck dsin this tail-stock spindle beingheld open, vby means hereinafter described, the half completed blank orrod in spindle d passes into it, and the chuck (Z3, being closed, graspsthe rod or blank, and when the spindle Z is set in motion it carrieswith it the tail-stock spindle d2. The severing-cutterf then advancesupon the rod and severs it. The tail-stock then recedes, carrying withit the severed blank. The head w is then partially rotated to bringanother of its spindles d2 into line with the next spin- Vdle dpresented to the severing-cutter, and

to move the spindle holding the last blank either to or toward a cutter,k2, which is mounted on a lever, Z2, pivoted to a boss on thetail-stock, and is formed to reduce the ends of the blanks which projectfrom the spindles d2. (See Fig. 13.) Said cutter is preferably locatedso that two partial rotations of the head fw are required to move eachblank to it from the severing-cutter, although it may be arranged sothat one partial rotation will be sufficient. Vhen the blank ispresented to the cutter k2, the spindle holding the blank is rotated bya belt, which is moved upon the pulley of that spindle from a singleloose pulley, Z3, by a shipping-lever, mi, operated by a cani, a2, onthe shaft b. "While the spindleis being rotated the cutter k2 is movedagainst theblank by means of a cam, o2, on the shaft b2, until the blankis reduced, as shownvin Fig. l3,`when the cutter k2 retires and the beltis moved by the shipper upon the loose pulley Z3. The next partialrotation of the head w brings the spindle having the completed blankinto line with a device for operating theejecting-rod p, with which eachspindled2 is provided, said device being arock-shal't, r2, journaled infixed bearings and having two arms, s2 .S2-one engaged with a pinaffixed to a rod, t2, which slides in a xed guide, wz, and bears againstthe rear end of the ejecting-rod p", and the other arm engaged with acam, a3, on the shaft b2. Said cam oscillates the rockshaft r2 andcauses its arm/s'z to move the ejecting-rod'forward and eject thecompletedv blank, as shown in Fig. 14, the chuck-jaws of the spindlebeing opened at the same time to permit such ejection. lThe means hereshown for opening the chucks, both of the spindle holding the completedblank and of the spindle about to receive a blank from one oftheheadstock chucks, consists of a rock-shaft, b3, journaled in a Xedbracket, two arms, c3 et, aftlXed to said rock-shaft, therarm c4 actingupon a bifurcated arm, c5, formed to bear against the langes of theouter tubes of both of the spindles d2 whose chucks are to be opened,and a cam, e3, on a shaft engaged with the otherA arm, c3. As the cam e3recedes, a spring, s6, Fig. 7, under lever or arm c5, causesit to recedefrom the flanges of spindle d2, which are then pressed forward and closethe chuck.

IOO

rio

IIS

- filed herewith.

The devices for opening said chucks are omitted from Figs. l and 3, toavoid confus1on.

From the foregoing description it will be seen that the su ccessivesteps in the formation of each blank are as follows: The wire from whichthe pinions are to be made is supplied to the machine in lengths aboutequal to the lengt-11 of the rotary head or drum or the spindlestherein. The wire rod, when in its first position, is drawn partly outof the spindle by the jaws m m, Fig. 9, the head c is partly rotated tobring the rod to the cutter e, Fig. 10, and then locked, and while it islocked the spindle d is rotated, and the cutter e moved forward and thenback, thus acting on and then leaving therod. Then the headis givenanother partial rotation to bring the rod to the j awsn n., Fig. 1l, andagain locked. The rod is then moved farther forward by the jaws n n, andis moved by the next partial rotation of the head to the cutter f, Fig.12, where it is grasped by one of the chucks d2, and again rotated, andis acted on and severed bysaid cutter, the severed blank being left inthe chuck of the spindle d2 in line with it. The blank is then advancedto the cutter k2, Fig. 13, and reduced at its other end,and finallyejected, Fig. 14. It will also be seen that as many as seven blanks aresimultaneously acted on. The number of said spindles and theaccompanying tools may be varied as the nature of the work mayrequire,and although I have shown four spindles in the head-stock andfourin the tail-stock, and three cutters or working-tools, my inventionis by no means limited to these numbers.

' The means described for rotating a part only (one or more) of thespindles when the head is in working position may be used in othermachines-for example, in the screw-machine shown in my application forLetters Patent Some of the cutters may be rotated, however, instead ofthe spindles (the latter being held stationary) without departing fromthe spirit of my invention.

I do not limit myself to the joint use of both heads, as in some casesthe head c may be used independently, the blank or article beingentirely formed by the cutters accompanying said head, nor do I limitmyself to the described relative arrangement of the feeding jaws andcutters accompanying the head c, nor

to the form of said cutters, nor to the form of the finishing-cutteraccompanying the head w',

nor to the means for transferring the blanks' from theV spindles of thehead 0 to the head w. In my application for Letters Patent for ascrew-machine, above referred to, I have shown a head having a series ofspindles adapted to hold `wire rods, feeding devices, and cuttersco-operating with said spindles, whereby the wire is fed, reduced toform a shank, threaded cn the shank, and severed at a suitable distancefrom the shank to form a screw-head, and a second head having a seriesof spindles which are moved lengthwise, one at a time,to take the screwfrom the spindles of the first head (intions.

stead of being moved with the entire head in ting saw or cutter. I wish,therefore, to be understood as regarding said machine as com-A ingwithin the scope of the presentinvention.

The cutters accompanying the head c may be constructed to operate onblanks for other purposes.

In Fig. 15 I have shown the cutter E', to which the rod is firstpresented, mounted on an arm, G, which is capablenot only ofoscillating, as already described, to move the cutter toward and fromthe rod presented to it, but also of moving lengthwise of the rod whileoperating thereon, so that it can turn or reduce a section of the rod ofgreater length than the width of the cutter in forming an elongatedblank-for example, such as is shown in Fig. 17, this being a blank for asleeve to be partially split lengthwise to form spring-fingers, andplaced in a Watch-case pendant to hold the winding bar in differentlongitudinal posi- The blank is reduced from A to B by the tra-versemotion of the cutter, and afterward severed from the rod at C D by thesevering-cutter f. In this case the cutter E is mounted obliquely on thearm G', so as to give clearance to the cutter While it advances upon therod, as shown by dotted lines in Fig. 17. The rock shaft I', to whichthe arm G is affixed, is oscillated by the means already described tomove the cutter E toward and from the work, and is reciprocatedlongitudinally .4 by a cam, E, on the shaft Z, a lever, F, pivoted at Gto a fixed arm or bracket, H, and bearing at one end against the cam Eand at its other end against a collar, I, on the shaft I', and a spring,J, interposed between the head-stock frame and a collar, K, on theshaft. The cam Eand lever F move the rock-shaft I in the directionindicated by the arrow, Fig. 15, when the cutter E is withdrawn from thework, and the spring J moves the rock-shaft in the opposite directionwhen the cutter is presented to the work.. The length of the endwisemovement thus imparted to the rockshaft may be regulated by adjustingthe lever F on its pivot, the lever having a slot, L, for this purpose.An adjustable stopscrew,V, is also attached to the cutter-arm, so as toarrest the endwise motionof the cutter E at any desired point. Therock-shaft I may be slightly rotated, so as to move the cutter eitherinwardly or outwardly while it is acting on the work, and thuscause itto impart a tapering form tothe blank. To this end I employ a graduatedplate, P, pivoted at Q, to the bed a, and havinga guide, P', againstwhich bears a slide or shoe, R, having a socket in one side whichreceives a pin or adjusting-screw, S, in an arm, T, attached to therock-shaft i. The plate P may be secured to the bed withthe guide Peither parallel with the rock-shaft t' or IOS IIO

at any desired angle thereto, by a thumb-screw,

moves with the rock-shaft, and is held in confact with the guide P by aspring, U. When the guide P is parallel with the rock-shaft, the latterin moving endwise is not rotated, and the cutter moves in a lineparallel with the axis ofthe rod on which it acts; but when the guide isset at an angle to the rock-shaft it gives the shoe a lateral movement7which partly rotates the rock-shaft and causes the tool e to move at anangle with the axis of the rod, and thus give the latter a taperingform, governed by the adjustment of the guide. The guide P may, ifdesired, be made curved or irregular,instead of straight, so as to givethe desired form to the'work. If desired, a drilling or reaming tool maybe used to form a longitudinal hole in the center of the blank.

I claim- 1. The combination of a rotary head or drum, a series ofspindles mounted thereon and adapted to hold wire rods to be convertedinto blanks, mechanism for rotating said head step by step to cause eachspindle to assume a series of working positions, devices for locking thehead in each working position, and rod-feeding mechanism, substantiallyas described, operating independently of the head or the spindlestherein, and cutting devices and operating mechanism therefor arrangedin series,to which the wire rods are presented by the step-by-steprotations of the head, the arrangement being such that each spindle ispresented successively to the several devices of said series, and saiddevices operate simultaneously on the several rods held by the series ofspindles, as set forth.

2. The combination of a rotary head having a series of running spindles,mechanism for rotating said head step by step, and devices for lockingit after each step to cause each spindle to occupy a series of workingpositions, a plurality of cutting or reducing tools and mechanism tooperate them, said tools being arranged to act simultaneously on wirerods held by two or more of the spindles when the latter are in theirworking positions, and a plurality of rod-feeding devices and mechanismto operate them, said feeding devices alternating in position with thecutting-tools and operating simultaneously therewith to prepare two ormore rods for the action of the tools to which they are next presented,as set forth.

3. The combination of a rotary head having a series of running spindles,mechanism for rotating .said head step by step, and devices for lockingit after each step to cause each spindle to occupy a series of workingpositions, a plurality of cutting or reducing tools and mechanism tooperate them, said tools being arranged to act simultaneously on wirerods held by two or more of the spindles when the latter are in theirworking positions, mechanism, substantially as described,where by thespindles are rotated when presented to said tools, and a plurality offeeding devices and mechanism to operate them, said feeding vingpositions, means,

ydevices alternating in position with the cutting-tools and operatingsimultaneously theref with, as set forth.

4. rI he combination of two rotary heads or drums, relatively arrangedas described, two series of spindles mounted in said drums, one seriesbeing adapted to hold wire rods and the other series to hold thepartially-formed 7 5 articles, mechanism for rotating said heads step bystep, locking devices for locking said heads in each position to whichthey vare rotated, rod feeding and cutting devices and operatingmechanism therefor, co-operating with the spindles in the first head,mechanism, substantially as described, whereby the spindles of thesecond head are caused to take the partially-completed articles from thespindles of the first head, a finishing-cutter to which said articlesare presented by the step-by-step rotations ofthe second head,and meansfor ejecting the completed articles from the spindles holding them, asset forth.

5. The combination of a head-stock, a ro` tary head, c, journaledtherein, a seriesA of spindles mounted in the head, a plurali-ty ofcutters and a plurality of feeding devices alternating in position withthe cutters, mechanisin for simultaneously operating said cutters andfeeding devices, mechanism for rotating the head step by step, devicesfor locking the head in a working position after each step,

a tail-stock, ahead, w', journaled therein and located with its axis outof line with the axis of the head c, mechanism for rotating said head wstep by step, and devices for locking it in a working position aftereach step, a series ofhspindles j ournaled in the head w,one of vsaidspindles being in line with a spindle of the head c,when both heads arein their workp substantially as described, whereby the spindle of thehead w is ycaused to grasp a blank held by the coinciding spindle of thehead c, and a cutter to which the blanks grasped by the spindles of thehead w are presented by the partial rotation of the latter, as setforth.

6. The combination of a rotary head having a series of running spindles,mechanism for rotating said head step by step and devices for lockingitV after each stepto cause each spindle to occupy a series of workingpositions,a plurality of cutters and mechanism to operate them, saidcutters being arranged to act simultaneously on wire rods held by two ormore ofthe spindles when the latter arein their working positions, aplurality of rod-feeding devicesand mechanism to operate them, saidlfreiling devices alternating in pcsition with IOO IIO

tions`, and thereby causing it to advance toward and recede from theother head, means for opening the jaws of one of the spindles of thesecond head while it is moving forward, and thereby causing said spindleto grasp a blank held lby a spindle of the other head, a cutter to whichthe blanks held by the .spindles of the second head are successivelypresented by the partial rotation of the latter, mechanism to operatesaid cutter, means for rotating eachspindle presented to saidv cutter,and ejecting devices, substantially as described, whereby the completedblanks are removed from the spindles of the second head, as set forth.

7. The combination of a rotary head, a series of running spindlesmounted therein, each having a pulley at its rear end, mechanism forrotating said head step by step and devices for locking it after eachstep, one or more loose pulleys on fixed bearings arranged to coincidewith one or more of the spindlepulleys when the head is locked inWorking position, one or more driving-belts, and mechanism,substantially as described, whereby said belts are alternately moved,first, onto the spindle pulley or pulleys, coinciding with the loosepulley or pulleys when the head is locked, and, secondly, onto the loosepulley or pulleys to permit the rotary movement of the head, as setforth.

8. lThe combination of a rotary head, a series of runningspindlesmounted therein,

' mechanism for rotating said head step by stepV and devices for lockingit after each step, the cutters e f and their operating mechanism, meansfor rotating the spindles presented to said cutters, the feeding-jaws mm and n n, alternating in position with said cutters, the jaws m m beingnearer the head than the jaws n n, mechanism, substantially asdescribed,

' whereby said jaws are simultaneously closed upon the wire rods, movedforward, opened to release the rods, moved additionally forward, andthen returned to their starting position, and mechanism, substantiallyas described,whereby,the jaws of the spindles are opened While the rodsare being moved forward by the feeding-jaws, as set forth.

9. The combination of` the head-stock, the rotary head and itsloperatingand locking mechanism, the running spindles mounted in the head, thecutters and their operating mechanism, the feeding-jaws m m and n n,provided with springs aa, the slides op upon the head-stock,to whichsaid jaws are pivoted, the levers b c', pivoted to standards on theslides, and the mechanism whereby said slides are reciprocated and thelevers b c oscillated, as set forth.

10. The combination of the reducing-cutter, the head having a series ofspindles, mechanism for presenting said spindles successively to saidcutter, and mechanism for giving said cutter an inward and outward and atraversing movement, as set forth.

11. The combination of the reducing-cutter, the head having a series ofspindles, mechanism for presenting said spindles successively to thecutter, mechanism for giving said cutter an inward and outward and atraversing motion, and adjustable devices for guiding the cutter in itstraversing motion, as set forth.

In testimony whereof I have signed my name to this specication, in thepresence of two subscribing witnesses, this 11th day of July,

